Puppet-valve and support therefor.



PATENTED JUNE 7, 1904. B. MORGAN. PUPPETV VALVE AND SUPPORT THEREPOR.

l APPLICATION FILED 00T. 5. 1903.

N0 MODEL.

/N VEN Tol? .3er/z ard falyaz/ B Y il A ToH/VE YS nmmulllVll-nnlu A Y Almmmmllllll Mnl Patented June '7, 1904.

PATENT OEEICE.

BERNARD MORGAN, OF RHINEBEOK, NEV YORK.

PUPPET-VALVE AND SUPPORT THEREFOR.

SPECIFICATION forming part of Letters Patent NO. 762,078, dated J une 7,1904:.

Application filed October 5, 1903.

To all whom, it may concern:

Be it known thatI, BERNARD MORGAN, a subject of the King ofGreatBritain, anda resident of Rhinebeck, in the county of Dutchess andState of New `York, have invented a new and Improved Puppet-Valve andSupport Therefor, of which the'following is a full, clear, and exactdescription. i

This invention relates to a class of puppetvalves in which the valve andits stem are held to play toward and from the seat by a cage throughwhich fluid or liquid may pass, the volume of flow being controlled bythe Valve and determined by the distance intertionary or automobilemotors.

The invention consists ,in the novel construction and combination ofparts, as is hereinafter described, and defined in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure l isa side view of the improved Valve and valve-cage. Fig. 2 is asectional side view substantially on the line 2 2 in Fig. 3. Fig. 3 is aplan view of -the device, and Fig. 4 is a sectional side View showing aslightly-altered construction of the valvesupport.

rlhe valve-cage that supports the valve and its stem in operativerelation to the valveseat consists of an annular base-piece 5, having atrue lower surface a, that affords a seat for the valve, which willpresently be described.

At a suitable point above the seat a an offset shoulder is formed on thebase-piece 5, that is thickened in its side wall to permit the formationof said shoulder, and opposite Serial No. 175,740. (No model.)

` theshoulder a circumferential flange c is integrally formed, thatdefines with its upper surfacethe upper side of the base-piece. The cageor valve-support also comprises a twopart cap-piece, the duplicate parts6 6 thereofY having contact on aline (Z, that coincides with the aXisofthe annular base-piece 5, and each cap-section is formed, essentially,as shown. The lower portions of the half-sections 6 6 are semicircularand together form a cap-ring having a radial flange e, that is true onthe lower surface and adapted to seat upon the true upper surface of theflange c on the basepiece 5. The flange e at its inner edge merges onthe lower side into a depending' circular wall e. that bears upon thetrue horizontal face of the annular shoulder I), and to render thesesurfaces gas and liquid tight where they have contact they may withadvantage be ground together.

' In each cap-section 6 6 an opening g is formed for the free passageofI motor fluid therethrough` these passages or ducts leading into thechamber g', formed partly in the basepiece 5 and partly in the joinedcap-sections 6 6, as is shown in Figs. 2 and 4L.

From the upper part of each hal f-section 6 6 a semicylindrieal flangeprojects, these flanges having straight edges that are extensions of thestraight surfaces of the main lower portions of said cap-sections, sothat when the latter are placed'together on the line il thesemicylindrical flanges will abut upon the same line, and the saidflanges will together provide a guide-sleeve 7.

The upper portions of the cap-piece sections 6 6 are preferably raisedto give said cap-piece dome shape in its upper portion, and the base o'fthe sleeve 7 extends down through the center of the raised partmentioned, so as to provide an orifice of equal diameter through theSleeve and cap-piece.

The valve consists of a circularly-cdged disk or block 8, that is trueon its upper surface at and near the edge, which surface may havecontact with the seat a on the base-piece 5 and for effective surfaceshould form a tight joint thereon. From the center of the valve 8 a stem9 projects thatis ata right angle with the upper surface of thevalve-body, said stem loosely IOO fitting in the bore of the guide 7 andalined orifice in the cap-piece.

Upon the end of the valve-stem 9 that 1s opi posite from that which isaffixed to the valvebody 8 a circular head-flange 9 is formed, saidflange a'flording an annular shoulder that projects equally from thestem. The length of the stem 9 is so proportioned that a space is formedbetween the head-flange 9 and the upper end of the guide-sleeve 7, thisspace determining the degree of opening had by the valve 8 when it isremoved from its seat a and is arrested by the impingement ofthehead-flange upon the guide-sleeve.

A coiled spring 10 is mounted upon the stem 9 and has enforcedengagement with its ends upon the head-flange 9 and the cap-piece of thevalve-cage at the base of the guide-sleeve 7, which the spring-coilencircles, and for effective service the strength of the spring must besufficient to insure the seating of the valve 8 upon the annular seat awhen pressure on the valve from gas or liquid that enters the chamber f/through the openings f/ is relaxed.

1t will be apparent that as the head-flange 9" is formed integral withthe valve-stem 9 it renders the bisection of the cap-piece of thevalve-support necessary, as unless this provision is made it would notbe possible to assemble the described parts of the valve-stem andvalve-cage for use as a concrete device.

The valve is preferably employed asa means for inducting charges ofmotive fluid into the cylinder of a portable engine, such as themetor onan automobile, and to adapt itfor such service it is affixed in properposition for receiving pressure of the motive agent (that may be gas,explosive vapor, or steam) directly upon the surface of the valve withinthe chamber g. rlhe pressure of the gaseous motive agent upon the valvecompresses the normally expanded spring 10 sufficiently to seat thehead-flange 9u upon the adjacent end of the guide-sleeve 7, which willcorrespondingly unseat the valve 8 and permit the motive agent to f'lovvunder pressure into the motor-cylinder or into a communicatingexplosion-chamber, if such a construction is employed.

1t will be seen that the provision of an integral head-flange 9" on theend of the stem 9 obviates a source of danger that is contingent uponthe employment of washers and cotterkeys or screwed collars that areordinarily placed on the end of the valve-stem to form an abutment forthe end of the reti-actingspring, such as 10, as it will be impossiblefor the valve to be dislodged from its seat entirely or a greaterdistance than that permitted by the limited sliding movement of thevalve-stem 9, that is controlled by the headflange 9.

ln Fig. 4 is shown a modilied construction of the valve-cage, whichessentially consists in the provision of a male screw-thread 1', that isformed on the exterior of the depending annular flange or wall e andthat screws into thefemale thread v7, formed in the side wall of therecess that has the horizontal shoulder for a bottom surface. It will beseen that the pressure of the motive agent and that of' the spring 10serves to retain the cap-piece of the valve cag'e or support in contactwith the base-piece 5 when these parts are not joined together with thethreads al v7, and, as is represented in Fig. 2, said screwed connectionbeing of advantage when the special application of the valve and itscage requires that the parts of the latter be positively securedtogether, as shown in Fig. 4.

The improved puppet-valve and its support may be formed of any suitablemetal forged or cast into form and subsequently finished by suitablemeans and can be produced at a moderate cost.

Having described my invention, .I claim as new and desire to secure byLetters Patent- 1. The combination with a circular valve having a flatupper side, a stem projecting centrally from the fiat side of the valve,and a circumferential head-flange on the opposite end of the valve-stem,of a valve-cage comprising an annular base-piece having a flatcircumferential flange, a two-part cap-piece having a circumferentialflange adapted to seat upon the flange on the base-piece, a bisectedcentral sleeve projected from the eappiece, said cap-piece beingapertured between the circumferential flange and the guidesleeve, saidsleeve loosely receiving the valvestem, and a coiled spring mounted uponthe sleeve and pressing the head-flange and cappiece, so as to enforcecontact between the circumferential flanges of the base-piece andcap-piece.

2. In a device of the described construction, the combination with acircularly-edged valve having aflat side, a cylindrical stem projectedcentrally from the flat side of the valve, and an integral head-flangeprojecting peripherally from the end of the valve-stem, of a valvesupport or cage that affords a seat for the valve, comprising an annularbase-piece having a true seat for the valve on its lower end,

a circumferential flange at the upper end thereof, an annular recessformed at the inner edge of said flange, a two-part cap-piece havf ing aradial flange at its edge, a depending flange entering the recess, theside walls of the recess and depending' flange having' threadedengagement, the cap-piece having dome shape above the radial flange, andapertures in the dome-shaped portion, a two-part guidesleeve central onthe dome portion of the cappiece said sleeve loosely receiving thecylindrical valve-stein, and leaving a space for play of the valve, saidspace intervening the headflange and the upper end of the guide-sleeve,and a coiled spring mounted upon the guidesleeve, and contacting at itsends upon the head-flange and cap-piece.

IOO

IIO

IIS

3. In a device of' the character described, tures therein above theradial flange, and a the valve cage or support, comprising an antwo-partcylindrical guide-sleeve projected nular base-piece having a valve-seaton its centrally from the top of the cap-piece. lower end, a radialflange on its upper end, In testimony whereofhavesigned my name I5 5 anannular recess at the inner edge of the rato this specification in thepresence of' two subdial flange, a two-part dome-shaped cap-pieceseribing Witnesses.

having a radial flange near its base, adepending annular flangeprojecting below said ra- BERNARD MORGAN' dial flange, the dependingflange entering the Witnesses: IO recess when the radial flanges havecontact F. H. THORNLEY, with each other, the cap-piece havlng aper- N.S. PALMATIER.

